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G. W. MoGILL.

I No. 330,995. Patnted Nov. 24, 1885.

PATENT @EETEE.

GEORGE W. MOGILL, OF NEW YORK, N. Y.

M ETALLlC FASTENER.

SPECIFICATION forming part of Letters Patent No. 330,995, dated November 24, 1885. Application filed September 25, 1385. Serial No. 178,126. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE W. MoGrLL, of New York, (Riverdale,) in the county of New York, and State of New York, have made certain new and useful Improvements in Metallic Fasteners, of which the following is a full and exact description, reference being bad to the accompanying drawings, making part of this specification.

The object of my invention is the production of an improved metallic fastener for fastening or binding together papers, cloth, and such like material; and it consists of a fastener formed of a piece of round or flat Wire of suitable length, folded in its center, preferably having its end pointed, and having its folded center secured in a metal disk, the disk forming the head of the fastener, and the folded wire its penetrating or fastening shanks.

In the drawings, Figure 1 represents the folded wire or fastener-shanks, vertically and in cross-section on the line x :10. Fig. 2 represents the metal disk or fastener-head.

The wire, as shown in Fig. l, is round wire, pointed at the ends and folded in its center at a, so as to bring both halves b b of the wire into close parallel contact, with one end or point projecting a little beyond the other, for a purpose hereinafter explained.

The disk, as shown in Fig. 2, consists of a piece of suitable ductile metal, 0, having a depression, 0, struck or sunk in the center of one of its sides. The wire so folded is placed in a die, K, having a chamber, 01, running vertically through its center, and of a size and shape to receive the folded wire, as shown in Fig. 3, and its face fashioned as shown in Fig. 6, Fig. 6 being a top or plan view of the face of the die, and Fig. 3 a vertical section showing the folded wire in the vertical chamber (2 of the same. The face of the die has a concave center, 6, surrounding the top of the chamber (2, and a convex check, 9, surrounding the concave center e. The fold a of the wire 00- cupies the center of the concave center 6.

A metal disk, formed as described, is placed on the cheek g of the die, with the top of the fold a. of the wire occupying its depressed or sunken center, 0, as shown in Fig. 4. A swaging -die, J, is now brought with force upon the top of the metal disk, giving to its upper surface the form of the face of the swag- I ing-die, and to its lower surface the form of the face of the lower die, and in doing so drawing or reducing the thickness of the disk, increasing its diameter and forcing its central thickness or bulk down in the concave center 0 of the lower die, and forming a clampingcollar, h, in, around, and below the fold a of the wire shank, which is thereby securely locked in the disk, as shown in Fig. 5, the disk forming a solid head for the same, as shown in the sectional Fig. 7 and reversed Fig. 8, and completing the fastener.

The metal disk or top of the fastener may be given a variety of ornamentation by fashioning the face of the swaging-dies accordingly.

Fig. 9 represents an edge and side view of the fastener-shanks, made of flat wire or sheet metal and folded, as shown in Fig. 1.

The shanks of the fastener may be formed .oftwo separate strips of metal, which, on being put together in the heading-die, may be headed in the manner hereinbefore described; but I give preference to having the shanks formed of a single strip of wire or fiat metal folded near the center, as before described.

In practice I find that in swaging the metal disk upon the fold a of the shanks the fold is eyed a little, forming a slightly-projecting head. which, when surrounded by the center collar, h, ofthe disk, produces a very secure attachment, and when two separate strips are used the force used in drawing or driving down the disk slightly spreads the tops of the shanks, heading them sufficiently to secure a very strong connection between them and the disk or fastener-head.

The fastener thus constructed is put in operation by forcing its shanks through the pa pers or other articles desired to be bound, and separating the shanks and folding them down on the other side of the same, thereby binding the article between the folded-down shanks and the head of the fastener.

One of the shanks of thefastener is made longer than the other, to facilitate the ready separation of the same in the act of using.

I do not claim herein the process or dies herein described as used in producing my invention, as I propose applying for a separate patent therefor, and for certain automatic maswag-ed in the under center surface of the head IO chinery in which said dies are used and such and surrounding and clamping the'top of the processes carried out; but shanks, substantially as and for the purposes What I do claim herein, and desire to sedescribed. 5 cure by Letters Patent, is-- A metallic fastener consisting of a penetratv GEORGE MOGILL' ing part composed of two projecting shanks Witnesses: of met-ah and a metal button-shaped head se- I EDWIN A. S. BARKELEW, cured to the shanks by an integral collar! THEO. LARBIG. 

